Spherodon Plus amalgam by Silmet is an ultra-fine spherical ternary which is formulated as a single composition. Utilizes modern resin technology which gives it unique dimensional stability and corrosion resistance in restorations. Composed of 100% spherical alloys, 60% Ag with a high copper content in a non-gamma II phase. Composition: Ag 56%, Cu 15.2%, Sn 28.8% Particle Shape: 100% spherical Particle Type: 100% Spherical Dimensional Change: ≤ 0.15% Average Compressive Strength: (1hr) 171 MPa Average Compressive Strength (24hr): > 350 MPa Creep: ≤ 0.75% Includes: (50) Alloy Capsules per Jar Non-Latex Shelf Life: 7 Years Country of Origin: Israel